Wrap Linux module macros

MODULE_VERSION is already defined on FreeBSD. Wrap all of the
used MODULE_* macros for the sake of consistency and portability.

Add a user space noop version to reduce the need for _KERNEL ifdefs.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9542

include/sys/Makefile.am

@@ -48,6 +48,7 @@ COMMON_H = \
 	$(top_srcdir)/include/sys/metaslab_impl.h \
 	$(top_srcdir)/include/sys/mmp.h \
 	$(top_srcdir)/include/sys/mntent.h \
+	$(top_srcdir)/include/sys/mod.h \
 	$(top_srcdir)/include/sys/multilist.h \
 	$(top_srcdir)/include/sys/note.h \
 	$(top_srcdir)/include/sys/nvpair.h \

include/sys/mod.h

@@ -0,0 +1,41 @@
+/*
+ *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
+ *  Copyright (C) 2007 The Regents of the University of California.
+ *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ *  UCRL-CODE-235197
+ *
+ *  This file is part of the SPL, Solaris Porting Layer.
+ *  For details, see <http://zfsonlinux.org/>.
+ *
+ *  The SPL is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  The SPL is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _SYS_MOD_H
+#define	_SYS_MOD_H
+
+#ifdef _KERNEL
+#include <sys/mod_os.h>
+#else
+/*
+ * Exported symbols
+ */
+#define	EXPORT_SYMBOL(x)
+
+#define	ZFS_MODULE_DESCRIPTION(s)
+#define	ZFS_MODULE_AUTHOR(s)
+#define	ZFS_MODULE_LICENSE(s)
+#define	ZFS_MODULE_VERSION(s)
+#endif
+
+#endif /* SYS_MOD_H */

include/sys/zfs_context.h

@@ -64,7 +64,7 @@
 #include <sys/procfs_list.h>
 #include <linux/dcache_compat.h>
 #include <linux/utsname_compat.h>
-#include <linux/mod_compat.h>
+#include <sys/mod.h>
 #include <sys/sysmacros.h>
 
 #else /* _KERNEL */
@@ -106,6 +106,7 @@
 #include <sys/resource.h>
 #include <sys/byteorder.h>
 #include <sys/list.h>
+#include <sys/mod.h>
 #include <sys/uio.h>
 #include <sys/zfs_debug.h>
 #include <sys/kstat.h>
@@ -206,11 +207,6 @@ typedef struct zfs_kernel_param {
 #define	ZFS_MODULE_PARAM_CALL(scope_prefix, name_prefix, name, setfunc, \
 	getfunc, perm, desc)
 
-/*
- * Exported symbols
- */
-#define	EXPORT_SYMBOL(x)
-
 /*
  * Threads.
  */